body,html
	line-height:1
	font-weight: 200
	font-family:  '微软雅黑','PingFang SC','Helevetica-Light'

.clearfix
	display: inline-block
	&:after
		display: block
		content: "."		
		height:0
		line-height:0
		clear:both
		visibility:hidden 
@media(-webkit-min-device-pixel-ratio:1.5),(min-device-pixel-ratio:1.5)
	.border-1px
		&::after
			-webkit-transform: scaleY(0.7)
			transform: scaleY(0.7)
@media(-webkit-min-device-pixel-ratio:2),(min-device-pixel-ratio:1.5)
	.border-1px
		&::after
			-webkit-transform: scaleY(0.5)
			transform: scaleY(0.5)
  	  	